no code implementations • 7 Mar 2024 • Stamatios Georgoulis, Weining Ren, Alfredo Bochicchio, Daniel Eckert, Yuanyou Li, Abel Gawel
Rapid and reliable identification of dynamic scene parts, also known as motion segmentation, is a key challenge for mobile sensors.
1 code implementation • 24 Aug 2022 • Patricia Vitoria, Stamatios Georgoulis, Stepan Tulyakov, Alfredo Bochicchio, Julius Erbach, Yuanyou Li
Non-uniform image deblurring is a challenging task due to the lack of temporal and textural information in the blurry image itself.
no code implementations • 4 Apr 2022 • Liqian Ma, Stamatios Georgoulis, Xu Jia, Luc van Gool
The ability to make educated predictions about their surroundings, and associate them with certain confidence, is important for intelligent systems, like autonomous vehicles and robots.
no code implementations • CVPR 2022 • Stepan Tulyakov, Alfredo Bochicchio, Daniel Gehrig, Stamatios Georgoulis, Yuanyou Li, Davide Scaramuzza
Recently, video frame interpolation using a combination of frame- and event-based cameras has surpassed traditional image-based methods both in terms of performance and memory efficiency.
no code implementations • 13 Mar 2022 • Nico Messikommer, Stamatios Georgoulis, Daniel Gehrig, Stepan Tulyakov, Julius Erbach, Alfredo Bochicchio, Yuanyou Li, Davide Scaramuzza
Modern high dynamic range (HDR) imaging pipelines align and fuse multiple low dynamic range (LDR) images captured at different exposure times.
1 code implementation • CVPR 2021 • Stepan Tulyakov, Daniel Gehrig, Stamatios Georgoulis, Julius Erbach, Mathias Gehrig, Yuanyou Li, Davide Scaramuzza
However, while these approaches can capture non-linear motions they suffer from ghosting and perform poorly in low-texture regions with few events.
1 code implementation • 14 Jun 2021 • Stepan Tulyakov, Daniel Gehrig, Stamatios Georgoulis, Julius Erbach, Mathias Gehrig, Yuanyou Li, Davide Scaramuzza
State-of-the-art frame interpolation methods generate intermediate frames by inferring object motions in the image from consecutive key-frames.
2 code implementations • NeurIPS 2021 • Wouter Van Gansbeke, Simon Vandenhende, Stamatios Georgoulis, Luc van Gool
Contrastive self-supervised learning has outperformed supervised pretraining on many downstream tasks like segmentation and object detection.
1 code implementation • CVPR 2021 • Suman Saha, Anton Obukhov, Danda Pani Paudel, Menelaos Kanakis, Yuhua Chen, Stamatios Georgoulis, Luc van Gool
Specifically, we show that: (1) our approach improves performance on all tasks when they are complementary and mutually dependent; (2) the CTRL helps to improve both semantic segmentation and depth estimation tasks performance in the challenging UDA setting; (3) the proposed ISL training scheme further improves the semantic segmentation performance.
1 code implementation • ICCV 2021 • David Bruggemann, Menelaos Kanakis, Anton Obukhov, Stamatios Georgoulis, Luc van Gool
Our goal is to find the most efficient way to refine each task prediction by capturing cross-task contexts dependent on tasks' relations.
Ranked #86 on
Semantic Segmentation
on NYU Depth v2
1 code implementation • 7 Mar 2021 • Anton Obukhov, Maxim Rakhuba, Alexander Liniger, Zhiwu Huang, Stamatios Georgoulis, Dengxin Dai, Luc van Gool
We study low-rank parameterizations of weight matrices with embedded spectral properties in the Deep Learning context.
2 code implementations • ICCV 2021 • Wouter Van Gansbeke, Simon Vandenhende, Stamatios Georgoulis, Luc van Gool
To achieve this, we introduce a two-step framework that adopts a predetermined mid-level prior in a contrastive optimization objective to learn pixel embeddings.
Ranked #3 on
Unsupervised Semantic Segmentation
on ImageNet-S-50
2 code implementations • 24 Aug 2020 • David Bruggemann, Menelaos Kanakis, Stamatios Georgoulis, Luc van Gool
The multi-modal nature of many vision problems calls for neural network architectures that can perform multiple tasks concurrently.
1 code implementation • ECCV 2020 • Menelaos Kanakis, David Bruggemann, Suman Saha, Stamatios Georgoulis, Anton Obukhov, Luc van Gool
First, enabling the model to be inherently incremental, continuously incorporating information from new tasks without forgetting the previously learned ones (incremental learning).
1 code implementation • ICML 2020 • Anton Obukhov, Maxim Rakhuba, Stamatios Georgoulis, Menelaos Kanakis, Dengxin Dai, Luc van Gool
Each of the tensors in the set is modeled using Tensor Rings, though the concept applies to other Tensor Networks.
2 code implementations • ECCV 2020 • Wouter Van Gansbeke, Simon Vandenhende, Stamatios Georgoulis, Marc Proesmans, Luc van Gool
First, a self-supervised task from representation learning is employed to obtain semantically meaningful features.
Ranked #4 on
Image Clustering
on ImageNet-200
1 code implementation • 28 Apr 2020 • Simon Vandenhende, Stamatios Georgoulis, Wouter Van Gansbeke, Marc Proesmans, Dengxin Dai, Luc van Gool
In this survey, we provide a well-rounded view on state-of-the-art deep learning approaches for MTL in computer vision, explicitly emphasizing on dense prediction tasks.
1 code implementation • ECCV 2020 • Simon Vandenhende, Stamatios Georgoulis, Luc van Gool
In this paper, we argue about the importance of considering task interactions at multiple scales when distilling task information in a multi-task learning setup.
Ranked #7 on
Semantic Segmentation
on UrbanLF
no code implementations • 15 Dec 2019 • Suman Saha, Wen-Hao Xu, Menelaos Kanakis, Stamatios Georgoulis, Yu-Hua Chen, Danda Pani Paudel, Luc van Gool
Face anti-spoofing is a measure towards this direction for bio-metric user authentication, and in particular face recognition, that tries to prevent spoof attacks.
no code implementations • 11 Jun 2019 • Anton Obukhov, Stamatios Georgoulis, Dengxin Dai, Luc van Gool
State-of-the-art approaches for semantic segmentation rely on deep convolutional neural networks trained on fully annotated datasets, that have been shown to be notoriously expensive to collect, both in terms of time and money.
Image Segmentation
Weakly supervised Semantic Segmentation
+1
no code implementations • ICLR 2020 • Simon Vandenhende, Stamatios Georgoulis, Bert de Brabandere, Luc van Gool
In the context of multi-task learning, neural networks with branched architectures have often been employed to jointly tackle the tasks at hand.
no code implementations • ICLR 2019 • Liqian Ma, Xu Jia, Stamatios Georgoulis, Tinne Tuytelaars, Luc van Gool
Experimental results on various datasets show that EGSC-IT does not only translate the source image to diverse instances in the target domain, but also preserves the semantic consistency during the process.
22 code implementations • 15 Feb 2018 • Davy Neven, Bert de Brabandere, Stamatios Georgoulis, Marc Proesmans, Luc van Gool
By doing so, we ensure a lane fitting which is robust against road plane changes, unlike existing approaches that rely on a fixed, pre-defined transformation.
Ranked #16 on
Lane Detection
on TuSimple
no code implementations • 11 Dec 2017 • Yu-Hui Huang, Xu Jia, Stamatios Georgoulis, Tinne Tuytelaars, Luc van Gool
Pixelwise semantic image labeling is an important, yet challenging, task with many applications.
1 code implementation • CVPR 2018 • Liqian Ma, Qianru Sun, Stamatios Georgoulis, Luc van Gool, Bernt Schiele, Mario Fritz
Generating novel, yet realistic, images of persons is a challenging task due to the complex interplay between the different image factors, such as the foreground, background and pose information.
Ranked #2 on
Gesture-to-Gesture Translation
on Senz3D
1 code implementation • 8 Aug 2017 • Davy Neven, Bert de Brabandere, Stamatios Georgoulis, Marc Proesmans, Luc van Gool
Most approaches for instance-aware semantic labeling traditionally focus on accuracy.
no code implementations • ICCV 2017 • Stamatios Georgoulis, Konstantinos Rematas, Tobias Ritschel, Mario Fritz, Tinne Tuytelaars, Luc van Gool
How much does a single image reveal about the environment it was taken in?
no code implementations • 27 Mar 2016 • Stamatios Georgoulis, Konstantinos Rematas, Tobias Ritschel, Mario Fritz, Luc van Gool, Tinne Tuytelaars
In this paper we are extracting surface reflectance and natural environmental illumination from a reflectance map, i. e. from a single 2D image of a sphere of one material under one illumination.
no code implementations • ICCV 2015 • Stamatios Georgoulis, Vincent Vanweddingen, Marc Proesmans, Luc van Gool
Although inferring higher dimensional BRDFs from such modest training is not a trivial problem, our method performs better than state-of-the-art parametric, semi-parametric and non-parametric approaches.